All releases of Jess

Release Notes: This version includes a patch for some issues with default values in inherited templates, and a workaround for folks who need to include the period character in template slot names (see the release notes section entitled "Porting from Jess 7" for details.)

Release Notes: This release contains many enhancements to rule engine performance and rule language usability. The semantics of "Java patterns" are greatly improved, and the rule compiler is far more aggressive about optimization.

Release Notes: This release optimizes the "test" CE as well as some uses of functions during pattern matching, resulting in both memory and performance improvements. It also introduces a new "dotted variable" notation for referring to facts and their slots, giving both clearer syntax for humans and easier code generation. This release includes some important bugfixes. It is recommended that everyone use this version for their development work.

Release Notes: The major new feature in this release is "peering". Any number of Jess instances can now share a single rule base, leading to much faster startup and reduced memory usage for systems in which multiple engines run the same rules on differing data.